Answer:
24
Step-by-step explanation:
A is 4 times that of B ie
A = 4B (1)
A is also 3 times that of C ie
A = 3C (2)
From equation 1,
B = A/4
From equation 2,
C = A/3
But the there are 38 sweets in the 3 boxes i.e
A + B + C = 38
A + A/4 + A/3 = 38
Multiply through by 12 to express in linear form
12A + 3A + 4A = 456
19A = 456
Dive both side by 19
A = 456/19
A = 24
